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Sammetblende

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Formula:
α-Fe3+O(OH)
A variety of Goethite

A fuzzy variety of goethite with a velvety luster created by carpets of microscopic acicular crystals forming crusts or balls. The name is derived from the German word for "velvet" and is often used for this variety in Germany and Bohemia. A more modern spelling is "Samtblende".


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Chemical Properties of SammetblendeHide

Formula:
α-Fe3+O(OH)

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for SammetblendeHide

Reference List:
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Glocker (1831): 549.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 680.

Internet Links for SammetblendeHide

Mineral and/or Locality  
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